IT1129371B - Commutatore di messaggi a struttura distribuita su canale ad accesso casuale per colloquio a messaggi tra unita elaborative - Google Patents

Commutatore di messaggi a struttura distribuita su canale ad accesso casuale per colloquio a messaggi tra unita elaborative

Info

Publication number
IT1129371B
IT1129371B IT68691/80A IT6869180A IT1129371B IT 1129371 B IT1129371 B IT 1129371B IT 68691/80 A IT68691/80 A IT 68691/80A IT 6869180 A IT6869180 A IT 6869180A IT 1129371 B IT1129371 B IT 1129371B
Authority
IT
Italy
Prior art keywords
interview
messages
channel
random access
processing units
Prior art date
Application number
IT68691/80A
Other languages
English (en)
Other versions
IT8068691A0 (it
Inventor
Cesare Poggio
Aldo Reali
Volmer Chiarottino
Original Assignee
Cselt Centro Studi Lab Telecom
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Priority to IT68691/80A priority Critical patent/IT1129371B/it
Publication of IT8068691A0 publication Critical patent/IT8068691A0/it
Priority to JP56170263A priority patent/JPS57107656A/ja
Priority to DE198181109021T priority patent/DE51794T1/de
Priority to EP81109021A priority patent/EP0051794B1/en
Priority to DE8181109021T priority patent/DE3173661D1/de
Priority to CA000389178A priority patent/CA1172719A/en
Priority to US06/318,254 priority patent/US4470110A/en
Application granted granted Critical
Publication of IT1129371B publication Critical patent/IT1129371B/it

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/36—Handling requests for interconnection or transfer for access to common bus or bus system
    • G06F13/368—Handling requests for interconnection or transfer for access to common bus or bus system with decentralised access control
    • G06F13/374—Handling requests for interconnection or transfer for access to common bus or bus system with decentralised access control using a self-select method with individual priority code comparator

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Small-Scale Networks (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
IT68691/80A 1980-11-06 1980-11-06 Commutatore di messaggi a struttura distribuita su canale ad accesso casuale per colloquio a messaggi tra unita elaborative IT1129371B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT68691/80A IT1129371B (it) 1980-11-06 1980-11-06 Commutatore di messaggi a struttura distribuita su canale ad accesso casuale per colloquio a messaggi tra unita elaborative
JP56170263A JPS57107656A (en) 1980-11-06 1981-10-26 Random access channel distribution structure message exchange system for message speech between processing units
DE198181109021T DE51794T1 (de) 1980-11-06 1981-10-28 Datenvermittlungssystem der distributiven strukturenart mit einem direkt-zugriffskanal fuer den nachrichtendialog zwischen mehreren datenverarbeitungseinheiten.
EP81109021A EP0051794B1 (en) 1980-11-06 1981-10-28 Distributed-structure message switching system on random-access channel for message dialogue among processing units
DE8181109021T DE3173661D1 (en) 1980-11-06 1981-10-28 Distributed-structure message switching system on random-access channel for message dialogue among processing units
CA000389178A CA1172719A (en) 1980-11-06 1981-10-30 Distributed-structure message switching system on random-access channel for message dialogue among processing units
US06/318,254 US4470110A (en) 1980-11-06 1981-11-04 System for distributed priority arbitration among several processing units competing for access to a common data channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68691/80A IT1129371B (it) 1980-11-06 1980-11-06 Commutatore di messaggi a struttura distribuita su canale ad accesso casuale per colloquio a messaggi tra unita elaborative

Publications (2)

Publication Number Publication Date
IT8068691A0 IT8068691A0 (it) 1980-11-06
IT1129371B true IT1129371B (it) 1986-06-04

Family

ID=11310302

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68691/80A IT1129371B (it) 1980-11-06 1980-11-06 Commutatore di messaggi a struttura distribuita su canale ad accesso casuale per colloquio a messaggi tra unita elaborative

Country Status (6)

Country Link
US (1) US4470110A (it)
EP (1) EP0051794B1 (it)
JP (1) JPS57107656A (it)
CA (1) CA1172719A (it)
DE (2) DE3173661D1 (it)
IT (1) IT1129371B (it)

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GB2125257B (en) * 1982-08-04 1986-03-26 Plessey Co Plc Improved local area network systems
JPS59115645A (ja) * 1982-12-22 1984-07-04 Toshiba Corp 情報伝送方式
US4559595A (en) * 1982-12-27 1985-12-17 Honeywell Information Systems Inc. Distributed priority network logic for allowing a low priority unit to reside in a high priority position
US4667192A (en) * 1983-05-24 1987-05-19 The Johns Hopkins University Method and apparatus for bus arbitration using a pseudo-random sequence
US4763249A (en) * 1983-09-22 1988-08-09 Digital Equipment Corporation Bus device for use in a computer system having a synchronous bus
EP0172884B1 (en) * 1984-02-14 1990-09-26 Rosemount Inc. Multipriority communication system
ATE73558T1 (de) * 1984-08-23 1992-03-15 Siemens Ag Datenuebertragungsverfahren ueber einen multiprozessorbus.
JPS61150059A (ja) * 1984-12-24 1986-07-08 Sony Corp デ−タ処理装置
DE3636317A1 (de) * 1985-10-25 1987-04-30 Yamatake Honeywell Co Ltd Datenuebertragungssystem mit ueber eine uebertragungsschleife uebermittelten senderechtsanforderungssignalen
US4794516A (en) * 1985-10-31 1988-12-27 International Business Machines Corporation Method and apparatus for communicating data between a host and a plurality of parallel processors
ATE68309T1 (de) * 1986-02-24 1991-10-15 Siemens Ag Schaltungsanordnung fuer pcm-fernmeldeanlagen, insbesondere pcm-fernsprechvermittlungsanlagen, mit mehreren synchron pulstaktgesteuerten sendern fuer gemeinsamen sendekanal.
US5237671A (en) * 1986-05-02 1993-08-17 Silicon Graphics, Inc. Translation lookaside buffer shutdown scheme
US4739323A (en) * 1986-05-22 1988-04-19 Chrysler Motors Corporation Serial data bus for serial communication interface (SCI), serial peripheral interface (SPI) and buffered SPI modes of operation
US4742349A (en) * 1986-05-22 1988-05-03 Chrysler Motors Corporation Method for buffered serial peripheral interface (SPI) in a serial data bus
US4739324A (en) * 1986-05-22 1988-04-19 Chrysler Motors Corporation Method for serial peripheral interface (SPI) in a serial data bus
NL8700736A (nl) * 1987-03-30 1988-10-17 Philips Nv Een-kanaalsbussysteem voor meermeester gebruik, met bitcelsynchronisatie, en meesterstation voorzien van een bitcelsynchronisatie-element daarvoor.
US4768189A (en) * 1987-06-17 1988-08-30 Bell Communications Research, Inc. High capacity communication utilizing static, OR-type channels
US4899143A (en) * 1988-04-21 1990-02-06 Bell Communications Research, Inc. High capacity communication system over collision-type channels
US4852091A (en) * 1988-04-21 1989-07-25 Bell Communications Research, Inc. High capacity communication system utilizing OR-type channels
US5123100A (en) * 1989-01-13 1992-06-16 Nec Corporation Timing control method in a common bus system having delay and phase correcting circuits for transferring data in synchronization and time division slot among a plurality of transferring units
SE464053B (sv) * 1990-01-22 1991-02-25 Kent Lennartsson Anordning vid distribuerat styrsystem
KR950014373B1 (ko) * 1990-11-02 1995-11-25 니뽄 덴끼 가부시끼 가이샤 인터럽트 제어기
US5689657A (en) * 1991-03-30 1997-11-18 Deutsche Itt Industries Gmbh Apparatus and methods for bus arbitration in a multimaster system
JP2531903B2 (ja) * 1992-06-22 1996-09-04 インターナショナル・ビジネス・マシーンズ・コーポレイション コンピュ―タ・システムおよびシステム拡張装置
US5430848A (en) * 1992-08-14 1995-07-04 Loral Fairchild Corporation Distributed arbitration with programmable priorities
US6157978A (en) * 1998-09-16 2000-12-05 Neomagic Corp. Multimedia round-robin arbitration with phantom slots for super-priority real-time agent
US6467006B1 (en) * 1999-07-09 2002-10-15 Pmc-Sierra, Inc. Topology-independent priority arbitration for stackable frame switches
US20020075891A1 (en) * 2000-12-16 2002-06-20 Slim Souissi Network assisted random access method

Family Cites Families (16)

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Publication number Priority date Publication date Assignee Title
GB1365838A (en) * 1972-04-21 1974-09-04 Ibm Data handling system
GB1480208A (en) * 1974-07-03 1977-07-20 Data Loop Ltd Digital computers
US4071706A (en) * 1976-09-13 1978-01-31 Rca Corporation Data packets distribution loop
US4209838A (en) * 1976-12-20 1980-06-24 Sperry Rand Corporation Asynchronous bidirectional interface with priority bus monitoring among contending controllers and echo from a terminator
JPS5430626A (en) * 1977-08-11 1979-03-07 Marusho Kagaku Method of installing road sign
US4156277A (en) * 1977-09-26 1979-05-22 Burroughs Corporation Access request mechanism for a serial data input/output system
US4320502A (en) * 1978-02-22 1982-03-16 International Business Machines Corp. Distributed priority resolution system
US4229791A (en) * 1978-10-25 1980-10-21 Digital Equipment Corporation Distributed arbitration circuitry for data processing system
JPS55118138A (en) * 1979-03-06 1980-09-10 Ricoh Co Ltd Priority control system
US4357707A (en) * 1979-04-11 1982-11-02 Pertec Computer Corporation Digital phase lock loop for flexible disk data recovery system
US4232294A (en) * 1979-04-30 1980-11-04 Control Data Corporation Method and apparatus for rotating priorities between stations sharing a communication channel
US4292623A (en) * 1979-06-29 1981-09-29 International Business Machines Corporation Port logic for a communication bus system
US4330857A (en) * 1980-02-29 1982-05-18 Ibm Corporation Dynamically variable priority, variable position channels in a TDMA burst
US4387425A (en) * 1980-05-19 1983-06-07 Data General Corporation Masterless and contentionless computer network
US4385350A (en) * 1980-07-16 1983-05-24 Ford Aerospace & Communications Corporation Multiprocessor system having distributed priority resolution circuitry
US4373183A (en) * 1980-08-20 1983-02-08 Ibm Corporation Bus interface units sharing a common bus using distributed control for allocation of the bus

Also Published As

Publication number Publication date
US4470110A (en) 1984-09-04
DE51794T1 (de) 1983-03-03
EP0051794A1 (en) 1982-05-19
JPS6365177B2 (it) 1988-12-14
JPS57107656A (en) 1982-07-05
EP0051794B1 (en) 1986-01-29
CA1172719A (en) 1984-08-14
DE3173661D1 (en) 1986-03-13
IT8068691A0 (it) 1980-11-06

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